By the way, those are indeed cycle lanes on either side of the road and the more observant will have noticed there's no white line down the centre of the road.

That's because if there were, nothing wider than a Mini would fit between the lines. If you stay out of the cycle lanes you risk hitting oncoming traffic. If you go into the cycle lanes you risk a fine.

Our localcouncil recently built a new access road to a trading estate that mostly deals with cars and lorries, likewise it has cycle lanes on both sides leaving not enough room for two lanes of traffic and thus no central white lining. Luckily no-one cycles.